Sealing device for jars, bottles, &amp;c.



No. 808,114. PATENTED OCT. 31, 1905.

' G. KNUTZEN.

SEALING DEVICE FOR JARS, BOTTLES, 6m.

APPLICATION FILED DEO.12, 1904.

PATENTOFFIGE.

SEALING DEVICE. FOR JARS; 'BOT'TLES, 8.0.

Specification of Letters Patent.

' Patented Oct. 31, 1905.

Application filed December 12. 1904. Serial No. 236,622.

To all whom, it may concern.-

Be it known that I, GEORGE KNUTZEN, a citizen of the United States, residing at Berkeley, in the county of Alameda, State of California, have invented a new and useful Sealing Device for Jars, Bottles, &c., of which the following is a specification.

My invention relates to improvements in sealing devices for jars, bottles, &c.; and the objects of my improvements are to provide a jar of such appearance and utility as will combine a perfect seal with the ready removal and replacing of sealing-cover and detachable strap and further adapt the same to continuous and varied uses. I attain these objects in the manner illustrated in the accompanying drawings, in which- Figure 1 is a vertical and general View of jar. Fig. 2 shows a sectional view of same. Fig. 3 is an elevation of tightening-strap. Fig. 4 is a plan of same; and Figs. 5and 6 are similar views of tightening-strap made of wire, provided the same should be preferable.

Similar numbers refer to similar parts throughout the several views.

The jar and cover, Fig. 1 and Fig. 2, may be made of glass, earthenware, compressed wood-pulp, metal, or other suitable material of plain or ornamental appearance and in any convenient shape. The cover 1 is made to fit close on jar-body 2, giving the sealing-ring 3, of rubber or other suitable material, a chance to effect aperfectly-tight joint. The projecting ring part 4 on jar-body 2 is made of such continuous inclination as will cause the strap 5, of preferably metal nickel-plated, galvanized, or otherwise treated, as will render the same indestructible and of neat appearance, to eflfect a compressive and sealing pressure on sealing-ring 3 when the strap 5 is turned on its axis. This strap has, as is shown, a projection 6 on its central part made to fit a corresponding depression on the cover 7, which will center and retain the same in place after tightening, but not interfere with its removal when loosened.

N o loosening of joint or leakage of contents of jar can possibly take place unless the strap is forcibly turned on its axis, an operation which is only intended to be deliberately performed. It is also obvious that the cover 1 will only exerta compressive or sealing pressure on sealing-ring 3 as the strap 5is turned on its axis, thus having no tendency to deface or spoil sealing-ring for continuous use. The

strap, furthermore, forms a convenient handle for jar by reason of dished form of cover.

It will be apparent from an examination of Figs. 4 and 6 that the circumferential length of the flexible band 8 is a little more than one hundred and eighty degrees and that the strap 5 extends diametrically across the same and is at its ends connected with the band near the ends of the latter. Preferably the ends of the band extend beyond the strap, as indicated at 9, and are bent outward to facilitate the application of the band to the jar. The

upper edge of the band is inclined or camshaped, as indicated in Figs. 3 and'5, and is arranged to engage with the inclined lower edge of the rim 1. After the cover has been put in place upon the jar the band can be easily and quickly snapped into position below the rim 4:, the shape and construction of the band 8 facilitating this and making it unnecessary to exercise any particular degree of care or skill in putting it in place. After being thus applied it may be rotated, the projection 6 that engages with the cover serving as a pivot or fulcrum upon which the clamping means as a whole'turn and the band by engaging with the rim causing the parts to be drawn down into locking or clamping position.

I am aware generally of the construction of jars having similar features, and I do not, therefore, claim the combination of such a vessel broadly; but

What I do claim, and desire to secure by Letters Patent, is

1. The combination with a jar or like receptacle provided with a rim near its open end and a cover therefor, of an arc-shaped flexible band whose circumferential length is more than one hundred and eighty degrees, and a strap extending diametrically across the cover and having its ends connected with the band for holding the said cover in place, substantially as set forth.

2. The combination with a jar and a cover therefor, the jar being provided with a rim the under surface of which is cam-shaped, an arcshaped band provided with an inclined or camshaped upper surface arranged to lie underneath the rim portion of the jar, and a strap extending diametrically over the top of the cover and having its outer ends connected with the band, the said strap being provided with a pivot projection at its center to engage the top of the cover, whereby the strap may be moved on its pivot and the band revolved bisecting the said are, whereby when the band is placed in position the outer ends of the band may be flexed to engage the jar, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE KN UTZEN. Witnesses:

PAUL BRANT, M. A. ELLIOTT. 

